<template>
    <div class="icons">
        <swiper :options="swiperOption">
            <swiper-slide v-for="(page, index) of pages" :key="index">
                <div class="icon" v-for="item of page " :key="item.id">
                    <div class="icon-img">
                        <img class="icon-img-content" :src="item.imgUrl"/>
                    </div>
                    <p class="icon-desc">{{item.desc}}</p>
                </div>
            </swiper-slide>
        </swiper>
    </div>
</template>
<script>
export default {
  name: 'HomeIcons',
  props: {
    iconList: Array
  },
  computed: {
    pages () {
      const pages = []
      this.iconList.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  },
  data: function () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  }
}
</script>
<style lang="stylus" scoped>
@import '~styles/variables.styl';
@import '~styles/mixins.styl';

.icons >>> .swiper-container {
    height: 0;
    padding-bottom: 50%;
}

.icon {
    position: relative;
    overflow: hidden;
    float: left;
    width: 25%;
    height: 0;
    padding-bottom: 25%;

    .icon-img {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0.44rem;
        box-sizing: border-box;
        padding: 0.1rem;

        .icon-img-content {
            display: block;
            margin: 0 auto;
            height: 100%;
        }
    }

    .icon-desc {
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        height: 0.44rem;
        line-height: 0.44rem;
        color: $darkTextColor;
        text-align: center;
        ellipsis()
    }
}
</style>
